Coherent Detection

Coherent detection is a technique used in communication systems, particularly for transmitting signals like radio or optical signals. It involves synchronizing the receiver's phase and frequency with the incoming signal, allowing for more accurate detection of the transmitted information. This synchronization helps distinguish the signal from noise, improving reliability and clarity. By utilizing both the amplitude (strength) and phase (position) of the signal waves, coherent detection can enhance data rates and overall performance in various applications, such as fiber optics and wireless communications.